Riveting-machine.



E. J. PENNYPAGKER.

RIVETING MACHINE. APPLICATION FILED AUG. 29. 1910.

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RIVETING MACHINE.

APPLICATION FILED AUG. 29. 1910.

Patented Nov. 19, 1912.

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RIVETING MACHINE.

APPLICATION FILED AUG. 29. 1910.

1,044,81 3, Patented Nov. 19, 1912.

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E. J. PENNYPAGKER.

RIVBTING MACHINE. AIPLIGATION FILED AUG. 29 i910.

Patented Nov. 19, 1912.

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E. J. PENNYPAGKER.

RIVETING MACHINE.

APPLICATION FILED AUG. 29. 1910.

Patented Nov. 19,1912.

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Patented Nov. 19, 1912.

do iiQ fi'VZV/ RIVETING MACHINE. APPLICATION FILED we.29, 1910.

E. J. PENNYPAGKER,

E. J. PENNYPAGKER.

RIVETING MACHINE. APPLICATION IILIBD AUG. 29, 1910.

Patented Nov. 19, 1912.

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RIVETING MACHINE. APPLICATION FILED AUG. 29, 1910.

Patented Nov. 19-, 1912.

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E. J. PENNYPAOKER.

RIVETING MACHINE. APPLTJATION FILED AUG. 29,

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1 ,044,8 1 3, Patented Nov. 19, 1912.

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RIVETING MACHINE.

APPLICATION FILED AUG. 29. 1910 1,0443 1 3, Patented Nov. 19, 1912.

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be strong and tight.

To all whom it may concern:

UNITE srarns mam EDWARD J. PENNYPACKER, 015 LOS ANGELES, CALIFORNIA, ASSIGNORTO BAKER IRON WORKS, OF LOS ANGELES, CALIFORNIA, A CORPORATION OFCALIFORNIA.

RIVETING-MACHINE.

Specification of Letters Patent.

Application filed August 29, 1910. Serial No. 579,593.

' Be it known that I, EDWARD J. PENNY- 1' PACKER, a citizen of theUnited States, re-

siding at Los Angeles,in the county of I os Angeles and State ofCalifornia, have 1nvented a new and useful Rivetin '-Machine,.

of which the following is a speci cation.

This invention relates to machines which may be employed in themanufacture of sheet inetal pipe, and is more particularly. designed forriveting the round seams of cylindrical structures such as riveted pipe,steam boilers and the like.

The invention is mainly designed to. faciliwater pipe. Such pipe has tosustain heavy pressures and strains both endwise andexpansive, and it isnecessary that the olnts The manufacture of sheet strains has heretoforebeen largely carried .on by hand to insure perfect union of joints.

Certain objections obtain against hand work in the manufacture of sheetmetal pipe of usual sizes, among which may be mentioned the necessity ofsticking the rivets through the rivet holes from inside the pipe so thatthey may be set by the use of a hammer operated by themechanic whonecessar-- ily has to stand on the outside of the pipe. This.necessitates the useof short lengths of pipe so that the workman mayreach the round seam from either end for the purpose Moreover, theprocess the manufacture of riveted sheet metal pipe.

Variousdiificulties are encountered in the manufact I re of rivetedsheet metal pipe by machinery: among which may be nientloned theliability of the rivet becoming mashed in between the sheets, thuscausing a finor washer which will hold the sheets apart and cause thejoint to leak; and 'in case a rivet hole is slightly too large, the'rivet is liable to stand aslant andbe crushed over sidewise and thusfail tofill the rivet hole. Furthermore, diificulty is experienc'edinholding the lap in correct shape while. theirivet' is being driven orset; also in stripping the pi e from the h punch and in lubricating. t epunc I etal pipe for sustaining heavy fluid pressure and other binationsof parts particularly It is necessary in the manufacture of .rivetingsheet metal structures that holes be provided for the rivets. In thisriveting machine I combine as coordinate parts of the same organizationso-called punching and riveting mechanism so that all the operationsrequisite to the riveting of the sheet Patented Nov. 19, 1912.

edges together are performed by means of V the machine in proper order.

The invention inpart is applicable for unching and riveting any kind ofseams ormed between metal sheets where it is desired to hold the lapstogether while the rivet is being driven. I

A feature of the invention is the provision of mechanism whereby therivet head is held stationary and pressed against the outside of thepipe while the rivet is driven from inside the pipe, thus securing atighter joint 'and overcoming many difficulties heretofore obtaining inthe manufacture of pipe.

The inventiona'lso'includes parts and comset forth in the subjoineddetail description.

Objects 'of the invention are :to overcome the above referred todifficulties, to hold the lap, rivet head and rivet in true positionwhile the rivet is being driven, to i o the riveting and the laying ofthe lap in one operation; to make a superior riveted plpe; to makeprovision whereby the view'of the ,work is unobstructed by tools thatare out 0 commission and whereby such tools will not interfere with thework either in riveting flat sheets or round pipe; and to provide meansto lubricate the punch and t0 proyide mechanism tostrip the pipe fromthe punch. i, r

The invention may be embodied in various forms.

Tine accompanying drawings illustrate the maybe embodied.

I l o n l lnventlon msome of the forms n which 1t Figure 1 'is a sideelevation of a punching and rivetlng machine constructedqn accordancewith this invention in the form at present deemed best and with theparts ready for the riveting operation. Two pipe lengths.

are shown in section readyto be riveted together. Flg. 2 1s a plan viewin section on vation of the machine wit the parts in the same positionas in Fig. '1.. Parts at the rear of the machine are shown in dottedlines. Fig. 4 is afragmental rear elevation .105 line m Figs. 1' and 3.Fi 3 is a frontele- I from line in, Figs. 1, 6 and 12; the parts I beingin like position and on a'large'r scale than Figs. 1, 2 and 3. Fig. 5 isa section on line :11, Figs. 1, 4 and 6, looking up. The scale is thesame as in Fig. 4. Fig. 6 is an enlarged elevation mainly inlongitudinal vertical section on line or, Figs. 3 and 4; the parts beingshown at the close of the rivet setting operation. Fig. 7 is a crosssection on line 00 Figs. 1, 6, 10, 16 and 19. Fig. 8 is, a broken frontelevation partly in section on line 90 Figs. 9 and 10. The parts are inthe position shown in Fig. 10. Fig. 9 is a fragmental vertical axialsection on line m w ,'Figs. 8 and 11, showing the punching mechanism inoperation. The punch, the lap layer and stripper are mainly shownunsectioned. Fig. 10 is an axial section on line a2w Figs. 8 and 11,with a rivet inserted in a pipe and the lap laying mechanism incommission. Fig. 11 is a plan section on line as, Figs. 3, 6, 8 and 10,the lap laylng mechanlsm being in commission. Fig.

12 is a broken fragmental plan partly in section on line as", F igs. 1,3, 4 and 6, showing in solid'lines the punch stripper and oiler .and'thelap guide in commission and parts of the rivet setting mechanism out ofcommission and the clutch disconnected. Dotted'lines indicate theinactive position of the punch stripper, oiler and lap guide and theactive position of the rivet set-ting mechanism. Fragments of two unitedlengths of pipe partly punched are shown on the stake. Figs. 4; to 12inclusive are onone scale. Fig. 13 is a fragmental elevation on twicethe scale of Fig. 12, partly in section on'line 00 Figs. 12 and 14, theparts being in the position shown in solid lines in Fig. "12,'and in theact of stripping the pipe from the punch, which is shown on its upmovement. The punch andthe lap laying die are shown in elevation. Fig.14 is an elevation in the scale of Fig. 13 and partly in cross sectionon line m, Figs. 12 and 13, showing the vstrippin mechanism in the solidline position of. *igs. 12 and 13. Fig. 15 is across section of thestake on irregular plane partly indicated b line no, Figs. 1, 10, 15 and20, showing a ragment of apartly riveted joint of pipe on the stake. Thescale is that of Figs. 13 and 1 1. Fig. 15*- is a fragmental plan detailof the anvilwithcombined laplaying and rivet-holding die and rivet setin place. Fig. 16 is a fragmental broken vievw on the scale of Figs. 4and 6 of the underside of the forward end of the stake dismantledshowing the slot in which the device for operating the rivet set ismounted. Fig. 17 is a cross section of the stake on line m",

Figs. 1, 6, 10, 16 and 19. Fig. 18.is a cross.

20 is a plan view of the lap-laying, riveting and punching anvil in thesame scale as Fig. 16. Fig. 21 is a side elevation of a machine in whichthe invention is embodied in another form in which an eccentric isoperstake and partly riveted, one of the rivets being shown as justdriven; the rivet setting mechanism being at the point of maximumpressure. -Fig. 24 is an axial section on line 012 Fig. 23. Fig. 25 is across section analogous to that in Fig. 22 showing .thepo-sition ofparts at the beginning of a rivet setting stroke. Fig. 26 is a brokenside elevation of a machine embodying this invention in another form, inwhicha rivet is driven at each complete rotation of an eccentric shaftoperated through a train of gears, the shaft being of the'sameconstruct-ion as that shown in Fig. 21. In the forms shown in Figs. 21to 26, inclusive, the punch is in front of the lap-laying tool. In theother form the-punch is behind such tool. Fig. 27 is a side elevation ofa machine embodying the invention in a form in which a cam and fly-wheeloperates the riveting mechanism. Fig. 28 is an end elevation ofthe formof machine shown in Fig. 27, broken to contract the view. Fig. 29 is anendelevation ofthe stake with thrust roller to support the cam wheelduring action. Fig. 30 is a fragmentai vertical longitudinal sectionaldetail of v the mechanism in the form shown in Figs. 27, 28 and-29. Fig.31 is an enlarg d fragmental detail from the right of *ig; 28.

Fig. 32 is a detail elevation partly in section on line 02 Figs. 27 and31.

The lines indicating the planes'on .whic

cate the direction of sight in other figures the ordinals of whichaccompany such arrows respectively.

The frame of the machine comprises a base 1, a standard 2 andanoverhanging arm 3. The standard 2 is hollow and is provided with abulge or boss 4 having 'a bore 5 in which the riveting stake 6 is fixedin the usual manner. The overhanging arm 3 is provided with a head.7,and a shaft 8 for operating an-eccentric pin 9 in the head 7 isjournaled in bearings 10 and 11 in the ends of the arm 3. Said shaft isdet-achablyconnected by a clutch -12 of common con- I struction, with aloose also a fly-wheel.

pulley 13 which is The clutch is constructedfor' automatic .action'aswill be understood by reference to Figs 1, and 12 where the clutchdisengaging finger l4is normally held by the spring 15 in position toengage the cam 16 on the slidable non-rotatable toothed clutch member 17to withdraw such member from engagement with the clutch teeth 18'that'are The springs 19 normally hold the clutch member 17 in clutchingposition when the finger 14 is retracted as by a downward movement ofthe bell crank treadle 20 which is pivoted at 21 and operates theconnect-ions 22, 23, and 24 to withdraw the finger 14 from the clutchcam 16.

Thewheel 13 is continuously driven by a belt 25 and rotates freely onthe arbor 26 of the shaft 8 except when it is clutched to the shaft bythe clutch 17. Said wheel 13 v is held on the arbor by the cap 27 andset screw 28. v i

The eccentric pin 9'at the forward end of the shaft 8 is journaled inthe bushing 29 that is mounted in the slot 30 in the tool carrier 31,which is mounted in a vertical l guide-way 32 formed in the h'ead 7 andclosed by a head plate 33 fastened to the head by capscrews 34. When thefinger 14 is retracted and-the clutch member, 17 is active, the shaft 8is rotated to reciprocate the carrier 31 vertically. The carrier 31 isprovided with a chamber 35, the front and back of which is closed byplates 36 fixed to the carrier .body by screws 37 and provided withjournal bearings 38 in which is journal-ed the carrier shifting shaft 39having oppositely arranged eccentrics=40 and 41 on which, by means ofbushings a, b, are mounted the eccentric blocks 42,423, of the punch 44and thecombined lap-laying andv riveting tool 45, respectively.

The eccentric block 42 is provided with a screw-threaded socket 46, intowhich is screwed the punch seat 47 and the punch 44 is removablyattached to the punch seat by the sleeve 48 which is screwed onto thelower,end of the punch seat. The eccentric block 43 is provided with asocket 49 in-which the lap-laying tool '45 is secured by a set-screyv50. Said blocks are vertically into and the punch out of commission,when the crank is. turned to the right, and vice versa, when the crankis turned to'the left.

The throw of the eccentrics 40 and 41 is suflicient to move the bottompunch 44, in

the one instance sufficiently above the level of the bottom of thelap-laying tool 45' to allow such. tool to operate upon theouter pipelength 55, while the punch is free from the inner pipe length 56.

When it is desired to punch holes for the rivets, the crank 52 is turnedto the left to depress the punching eccentric 40, and then the finger 14is retracted thus allowing the clutch to engage the rotating fly wheel13,

.thus to cause the shaft 8 to rotate as indicated in Fig. '9. Byreleasing the treadle and consequ ently the finger 14, the clutch I iswithdrawn from engagement, and the normal friction of the shaft8 and itsconnected parts is sufiicient'to stop the shaft 8 while the wheelcontinues to -revolve.

The cam 16 is locatedwith relation to the eccentric pin 9 to disengagetheclutch when the carrier 31 is in elevated p o-sition. To

effect this result, in caseswhere the finger 14 is located above theshaft "as shown in Figs. 1 and 6, said cam 16 is fixed practically onthe same side of the shaft 8 with the /eccentric pin 9. The finger 14,however, is not arbitrarily located as shown and whena change of itslocation is deemed desirable by the constructor a corresponding changein the cam 16 must be made in order that the shaft 8 will betimed tostop when the carrier 31 is elevated. 1

The stake 6 is pro-vided, .in axial alinement with the punch 44, with apunch die 57 set in the anvil 58 which is mounted in a dove-.

tailed seat 59 extended transversely across the riveting stake 6.

When two pipe lengths. are to'be riveted together, they are-firstassembled and are then slipped'over the stake; and the line at which therivet holes are to be punched is brought beneath the punch 44; then theoperator Will place his foot upon the treadle 20, thus allowing theclutch 17 to engage the fly-wheel 13 and so long as the finger 14 isheld out of engagement with the cam. '16 the punch 44 will be operatedonce'at each rotation of the fiy-wheel. The operator will meanwhile turnthe pipe between the strokes of the punch the distance required for theseveral punchings. By releasing the treadle, the finger 14 engages thecam 16, thus withdrawing the clutch from the flywheel, and the shaft 8comes to rest with the cam, 16 in clutc'hwithdrawing position andvthetool carrier elevated.

The stake 6 is provided. in its under side with a cavity 60 in which ismounted a toggle device comprising two swinging'lin'ks 61 pivoted to'thestake by two toggle joint supporting pins 62 that are seated intransverse bores 63 in the stake 6, a thrust pintle 64 in the lower ends.of the links, a thrust link 65 pivoted to the links by said pintle, andthe toggle-thrust block 66 into which the toggle connecting rod 67 ,isscrewed. Above the cavity is a vertical guide way 68 in which theriveting head 69 that is supported by the thrust link and pivotedthereto by the riveting head pivot 70, is mounted to reciprocatevertically. The thrust link 65 is bifurcated at its ends to receive theknuckles of the toggle thrust block 66 and the riveting head, 69, andsaid riveting'head 69 is provided with rivet set holding springs 71.

that are fastened thereto by screws 72 and are provided with detents 73to detachably engage the notched rivet set 74 which Works vertically inthe lap-laying die,7 5, that is a detachable part of the stake providedwith a vertical way 76 above the guide-Way 68 to guide the rivet set 74,and with transverse grooves 77 and 78 to admit the unset backward, thusoperating the tOggle joint at the same time that the lap-laying tool isoperated to compress the rivet head against the pipe sheets and saidpipe-sheets against the lap-laying die. It is important that the sheetsbe held together by the lap-laying tool and die and that there should berelative movement between the lap-laying device comprising said tool anddie and the rivet set, so that while thesheets are firmly held togetherthe rivet maybe set by the rivet setting means independently of theforce which holds the sheets together. -At

the same time it is important that the head i of the rivet be held incontact with the top sheet, so that the rivet will'not cant in the holeand also to avoid any distortion of the rivet in theoperatibn of settingthe same.

I It is therefore important that the rivet settaneous operation'of thelap-laying tool and the rivet set may be effected, the toggle device and1ts connecting rod are operably connected with mechanism operated by theshaft 8. p

The mechanism is arranged to cause relative reciprocating movementbetween the rivet set and the lap-laying. device. Such.

. mechanism may be variously devised.

Referring to Figs.L1, 4, 6 and .12, the tog gle rod 67 is provided witha slot 84 in which a steel ribbon 85 is fastened by rivets 86. Saidribbon is led along a groove 87 in the underside of the stake andthrough the standard 2 around a.wheel 88 that is mounted on a pin 89seated in a slot 90 let into-the "end of the stake 6. Said ribbon 85 isconnected by a swivel stem 91 and a swivel sleeve 92 with a bifurcatedknuckle-bolt 93 between the knuckles 94 of which is pivoted byknuckle-pin 95, the rocker 96 which is journaled by a shaft 97 to abracket 98 that is fastened to the side of the-standard 2. Said rockeris provided with'a tappet 99 which may be reinforced by side pieces 100for engagement with a cam 101 that is fixed to the shaft 8 by a key 102which also serves as a spline upon which the clutch member 17 slides.

The hub 103 of the cam serves as a seat for the springs 19 which forcethe sliding clutch member 15 into engagementwith the clutch teeth 12when the finger lt'is retracted. The hub may also be provided with abrake wheel 104 to, which a band brake 105 of ordinary construction andwith usual operating devices may-be applied if it is desired to employ abrake to insure the stoppage of the shaft 8 when the carrier 31 i iselevated.

The toggle-returning spring 106 in the cavity 60 is interposed "betweenthe toggle .thrust block 66 and a washer 107 that surrounds the togglerod 67 and engagesthe stake 6 to form a purchase for the toggle spring106, so that when the rocker tappet escapes the cam 101 the togglejoi'nt will be immediately withdrawn to normal non-riveting position,shown in solid linesin Fig.

'10 and in dotted lines in Fig. 6;

The rocker 96 may be made of boiler'iron and the reinforcements 100 maybe pieces of tool teel riveted on 'oppositesides thereof at the tappet,as shown in Figs. at and 6. y The cam 191 is so arranged relative to theeccentric pin 9 and the tappet 99 that the upward thrust of the rivetset will be effected while the eccentric pin 9 is depressed. It isdesirable that the movement of "the rivet set be quick, and the cam 101and the t 99 are preferably so arranged that the stroke of the rockerw1ll begln and,

terminate within about 'one-twelfthre volution', more or less, of thepower shaft 8. v

In order that the pipe lengths to be riveted may be easily handledwhile'on the stake,,the stake is provided with'a resiliently supportedtransverse pipe-supporting wheel 108 mounted on anaxle 109 that extendsparallel'with the axis of the stake and is carried in the slot of aanti-friction by a vertical guide bushing .111 that is screwed into avertical screw-threaded bore 11.2 in the stake. Said block is supportedby a spring 113 carried by a seat 114 that is screwed into thebottom ofthe bore 112.

The wheel 108 is provided with a peripheral groove 115 in which thelap-lifting ring 116 which surrounds the stake -6 is hung,

v the purpose being to lift the inside edge, of

the longitudinal or straight-seam lap 117- as the pipe is turned aroundupon the stake. The Wheel 108 and the ring 116 extend above the top ofthe stake and practically on a level with the ridges 81 of the laplayingdie. .The bushing 111 is provided at its top with a shoulder 118.whichover hangs the top of the bearing block 110. The adjustable gib 119.enables the operatorto prevent any looseness of the carrier 31 in itsvertical way. The punch and laplaying tool are thus held true.

The punch bore 120 (see Fig. 18) has a slanting extension 121 lined witha tube 122 to carry the punchings past the cavity 60 and to dischargethem from the underside of the stake. a f c Referring now to Figs. 12,13, 14; the pipe stripper and oiler comprises a lever 123 pivoted on apin 124 fixed in a screwthreaded socket 125 in the underside of theoverhanging arm 3. Said lever is provided witha handle 126 and has alimited horizontal movement between two stops 127, 128, that are fixedinthe underside of the overhanging arm 3. The free end of the lever 123is provided with a laterally open notch 129 adapted to registercentrally with the bore 130 of the punching die 57, and said notch iscovered by a wick 131 which is perforated to receive the punch andextends aslant upward along the upper face of the arm of the lever 123.Said wick may be fastened by a rivet 132 to said arm and in practicewill be saturated with oil and the oil will feed by gravity to the ilower flat perforated end of the wick, thus to oil the punch as itreciprocates inthe operation of punching the pipe;

It is very desirable that the rivets of the round seam shall be at adetermined distance froln the end of the outer length of pipe and inorder to insure the location of the rivet holes at the exact linerequired, a gage wheel 133 is mounted on a slanting axis 134 which maybe formed by a screw screwed into the lower end of a spindle 135 whichis movable in a barrel 136 that is inclined rearwardly ata slight anglefrom the vertical and is provided with a slotted arm 137, which isfastened to the lever 123 by a cap screw 138 and a guide pin 139; Thecap screw 138-and the guide pin 139 extend through the slot 140 of thearm 137 and allow adjustment of the bar rel and the wheel 133 lengthwiseof the stake-so as to vary the distance from the end ofthe lapat whichthe holes will be \144, screwed onto the barrel.

punched. The spindle 135 is provided with a stop in the form of a pin141 that moves up and down in slots 142 in the barrel 136, and thespindle is pressed downward by a spring 143 held in the barrel by a caThe wheel 133 is beveled on its upper face so as to enter the anglebetween the. end of the outer length 55 of the pipe and the top side ofthe inner length 56. When the punch withdraws from a" punched hole itlifts the pipe thus forcing the gage wheel 133 up against thepressure'of the spring 143 and, since the barrel holds the spindle L135rearwardly and upwardly aslant, the

gage wheel withdraws from the pipe joint thus to prevent binding againstthe end of the outer length 55.

A lever-holding spring 145 is connected with the stripping lever 12?) infront of the pivot 124 and with a stud 146 in the overhanging arm 3 atone side of the vertical axial plane of such arm 'in such a positionthat the spring-will swing fro-msside to side across the extended axisof the pivot 124 when the lever is swung from stop 127 to stop 128, andvice versa, so that when the lever is against a stop "the spring willtend to hold it there;

It is desirable that the rivet-setting mechanism shall not be operatedduring the punching operation.

In order that the rivet-setting mechanism may be thrown out ofcommission automatically whenever the work on the riveting is beingperformed in the regular course, the rockerv 96 is mounted to slide onits journal 97 so as to escape the cam 101. -A forked shifting arm 147engages the hub 148 which is fastened to the rocker 96. Saidshifting 123rearwardly of the pivot pin 124 of said lever at such a distance fromsaid pin as to give the requisite throw to the shifting arm 147 to movethe rocker 96 so as to bring its tappet 99 into the path of the cam 101.Whenever the stripper is thrown into commission the tappet 99 will bethrown out of the path of the cam 101 and when the stripper is thrownout of commission the tappet will be shifted into the path of said cam.The shifting rod 150 is slidingly supported in the bracket 98. t

In the forms shown in Figs. 21, 22, 23, 24, 25 and 26 the rivet settingis effected by an eccentric 152 on shaft 153 that is mounted in journalbearings 154, 155, on the stake and standard. Mot-ion may be transmittedto said shaft 53 by various means.

In the forms shown in Figs-21 and 22 a cam 156 on the shaft 8 operates arocker arm 157 that is pivoted by pin, 158 to the standard 2, t erebeing an anti-friction roller 159 on said rocker arm 157 to receive thethrust of the cam and transmit it through a connectingrod 160 and acrank 161 to the eccentric shaft 153. Said crank is mounted below thecap 162 that holds the stake6 in the standard 2. A spring 163 holds therocker and roller against the cam 156 and helps to return the cranksandthe,

When the eccentric to, inactive position. earn, actuates the crank theeccentric 152 moves the eccentric block 164 up against the riveting set165 to set the rivet and when the cam 156 relieves the pressure on theroller 159, the springs 163 and 166 return the mechanism to inoperativeposition. The

cam 156 is timed with relation to the eccentric 9 of the shaft 8 so thatthe rivet set will be forced upward simultaneously with the downwardstroke of the lap-laying tool.

The clutch shown in Figs. 21' and 22 is the same astthat shown in theother views.

In Fig. 26 the cam shaft 153 is rotated by gearing'l67, 168 and 169connected with the shaft 8; and the gearing is timed to efiect therivet-setting operation at the same time as the lap-laying tool isdepressed.

In Fig; 26 the mechanism for shift-ing the clutch member 17 0 consistsof the bell crank 171 pivoted to the standard and provided with a pin172 that engages in annular groove 173 to shift the member 17 0 yand theconnecting rod 24 operates the bell crank 171 to shift the clutch member176 into engagement, a spring 174 being interposed between a latch lever175 and the bell crank lever 171,, so that the shifting is effectedwithout. jar when said rod 24 acts upon the latch-lever 175 to'withdrawthe latch 176 from the path of the cam 177, thus allowing the member 170to shift. When the connecting rod 24 is released the spring 174 returnsthe latch 176 into the path of said cam 177 which thereby effects theshifting of the clutch member 170 upon the first revolution thereafterof said member thus disconnecting the clutch in the same mannerheretofore described with relation to clutch member 17.

It is understood that the same form of clutch may be used in any of thedifferent forms of riveters. I

In the forms shown in Figs. 27, 28, 29, 30, 31 and 32 the fly-wheel 178ismounted loose on the shaft 8 as in the other views and is providedwith cams 179 that act upon the anti-frictiomroller 180 that isconnected by the pin 181 with a sliding bar 182 mounted to slidelongitudinally in the stake 6 to operate the toggle-joint mechanismhereinbefore described. The riveting roller 180 is shiftable verticallyon the pin 181 and the lock;183 is provided to enter beneath theanti-friction wheel'180 to support it against the pressure of the spring184'and to holdit out of the path 0 the cams 179 of the fly-wheel 178.Said lock is controlled by the stripper lever 123 through the connectingrod-.151, so that whenever the stripper vis thrown into its activeposition shown in solid lines in Fig. 12, the lock will be shifted bythe connecting rod 151 to support the roller 180 and lock it out ofcommission so that the rivet setting mechanism rod 189, the slot 190 ofwhich engages the crank pin 188, and said crank is so positionedrelative to the latch that on its down stroke it will remove the latchfromlatching position, thus allowing the wheel 180 to drop into activeposition unless the lock 183 is in looking position. Consequently whenthe lock 183 is out of locking position the movement of the pin 188through the lower arc of its path will release the roller 180, so thatas the fly-wheel 17 8 continues to rotate the slide 182 will be operatedto actuate the ing. Return shoulders 191 upon each cam 179 graduallymove the riveting wheel 180 back tonormal position where it isautomatically latched by the latch 185 out o the way of the cams 179.

In Figs. 23, 24 and 25 the anvil is omitted and the punch and lap-layingdies are seated directly in the stake and it is understood that variousforms of anvil and stake may constructor.

It is thus seen that in practical operation the tools on the toolcarrier are shiftable relative to each other in the same line in whichthey move in'all operations; all the movements of said tools beingalways dilatch'is also operated by the slot-ted latch toggle-jointmechanism to effect the rivet-- will not be actuated. When the lever 123is be employed within the judgment of the rectly toward and from thestake and never( in a line transverse to the stake; that the tools onthe stake, with the exception of the rivet set, are stationary; that therivet set moves axially inthe same plane as the tools onthe carrier, andthat there is no liability of'disalinement of any of the'tools.

It is understood that the anvil, the laplayingdie and thepunching dieare all practical parts of the stake and that they .and the otherpunching and riveting toolsmay be variously constructed to meet therequirements of various-jobs.

In practical operation the workman will first turn the crank 52 to shiftthe tool carrier 31 into position and will shift the gaging andstripping .lever 123 into commis- 5 are then placed upon the stake 6 andare brought into position with the lap or joint between the pipe lengthon the punching die 57. Then the operator by depressing the treadle 20will engage the clutch 12, thus causing the shaft to rotatetherebydepressing the tool carrier 31 and thus operating the punchthrough one revolution of the shaft 8 whereupon the clutch automaticallyreleases the shaft 8 and comes to a stand with its eccentric pin 9 atthe top, the operator will then turn the pipe which is resting'on theroller 108, the loose ring 116, the punching die 57 and lap. layer 7 5to bring the pipe into nosition'for another operation described isrepeated until all of the holes are punchd. Then the operator will turnthe crank 52 to shift the tool carriers in the reciprocating head, toraise the punch 44 and lower the external lap layer 45, and will thenshift the lever 123 out of commission, as in dotted lines in Fig. 12,the operator will with the right hand, place a number of rivets in theholes which are nearest to him at the top of the pipe and will turn thepipe to bring the first of said rivets centrally above the riveting dieand will then depress the foot lever 20,- thns releasing the clutchfinger 14 and engaging the clutch. Thereupon the shaft 8 is rotated bythe rotating fly-wheel, and the riveting tools carried in the stake andarm will coact to set the rivet; the tool 45 also laying the lap withgreat pressure.

By operating the upper riveting tool by means of an eccentric and thelower riveting.

tool by a cam, the upper tool remains in position for a time definitelylonger than is necessary for the stroke effected by the lower tool; andfurthermore, the stroke of the lower tool is sudden-so as to drive therivet practically instantaneously and with great force, thus to set thesame most effectively.

I claim I 1. In a pipe riveting machine, the combination with a stake,of means outside the stake to lay the lap and hold the rivet, meansinside the stake to set the rivet so held, and mechanism to operatesaidmeans conjointly. 1 2. In a pipe riveting machine the combinationwith means for holding together sheets to be riveted and for holding therivet heads in contact with one of said sheets, of rivet-setting means,and means for causing relative reciprocation between said sheet .and;rivet-holding means and said rivet-setting means' 3'. A riveting machinecomprising a stake, means above the stake, to lay the lap and of thepunch 44 and then the operation just hold the rivet, and means withinthe stake to set the rivet so held.

. 4. The combination with a riveting stake, of a lap laying die carriedby the stake, a lap-laying tool outside the stake to coiinerate with thelap-laying die, a rivet set Luvable in the lap laying die, and means tomove the rivet-set toward and from the lap laying tool.

The combination of two cotiperating lap laying tools,a rivet-set in oneof the lap laying tools, and means to operate said rivetset toward theother lap laying tool.

6. The combination with a stake provided with a lap laying tool; of alap laying tool to cotiperate with the lap laying tool of the stake, anda rivet-set in the stake to 'coo'perate with the second lap laying toolto drive the rivet held by said second lap laying tool.

7. In a riveting machine, a lap laying die provided with a vertical wayand provided on opposite sides of said way with parallel ridges andbetween said ridges with grooves leading to and from said way.

8. In a riveting machine, a lap laying die provided withavertical wayand provided on opposite sides of said way with parallel ridges andbetween said ridges with grooves; one'of said grooves being taperedtoward the way to admit the stem of a rivet to the way and the othergroove being adapted to allow the exit of the set rivet from said way.

9. The combination with a stake of a combined lap laying and rivetingdie provided with a vertical way and provided with ridges oIf oppositesides of the way and with grooves between the ridges, leading to andfrom the way; a rivet set in the way; a lap laying tool; and means forsimultaneously moving the lap laying tool and the set to- .ward eachother to lay the lap and set the rivet,

10. In a riveting machine, astake provided with a vertical way and withtransverse slots leading to and from said way, a rivet .set in thestake, means to move said set in the way and a lap-laying and rivetingtool coiiperating with the set to set the rivet. 11. The combinationwith a stake having a plurality of tools arranged along the stake, of areciprocating head, independently operating tool carriers carried bysaid head and arrranged along the stake above the same, means forrelatively adjusting said tool carriers for the purpose of moving one ofthe same into and another out of commission and vice versa, and tools insaid carriers respectively alined with and arranged to cotiperate withthe tools on the'stake respectively.

12. In a riveting machine a vertically reciprocating carrier,ashaft-journaled in the carrier and provided with variously arrangedeccentrics, eccentric bloc-ks vertically blocks each provided with asocket, a punch wheel on the pin and in the vertical slot, a 4

and a rivet set in said socket-s respectively,

eccentrics arranged to move said blocks in reverse directions, and meansto simultaneously reciprocate said blocks together.

4. In a riveting machine, a head provided with a guide-Way, a carrier"in said guide-way, saidcarrier being provided with a chamber, platesfixed to the carrier at the front and back and provided with journalbearings, a shaft having two eccentrics and journaled in said plates,eccentric blocks mounted on the eccentrics within said chamber andbetween said plates, tools on said eccentric blocks, tools to cooperatewith said tools and means to turn the shaft.

1 5. In a .riveting machine, a vertically reciprocating carrier,reversely movable blocks in said carrier, punching and riveting tools onsaid blocks respectively, means to reciprocate the carrier and means toshift the blocks to bring one into and the other out of commission, andvice versa.

16. In a riveting machine, punching and riveting tools, means toreciprocate said tools in one plane and means to reversely shift said.tools in the same plane.

17. The combination with a stake having in one end intersecting verticaland horizontal slots, the'vertical slot being of greater length than thehorizontal .slot, said stake also having in'its under side alongitudinal groove communicating with the vertical slot, and a cavitycommunicating with the groove and a vertical way extending up from thecavity; of a pinin the horizontal slot, a

rivet-set in the 'Way, mechanism in the cavity to operatefthe rivet-set,a spring to return the rivet-set to normal position, a ribbon led aroundthe wheel and connected to' operate said mechanism against the force ofgroove communicating with the vertical slot, and a cavity communicatingwith the groove and a vertical way extending up from the'eavlty; of apin in the horizontal slot, a wheel on the pin and in the vertical slot,a rivet set in the way, mechanism in the cavity to operate the set, a.spring to return the set to normal position. a ribbon led aroundthewheel and connected to operate said mechanism against the force ofthe spring, a-rocker above the wheel and a cam to operate the rocker,said ribbon being con-- nected with the rocker.

i 19. The combination with a stake having v in one end intersectingvertical and horizon:

tal slots, the vertical slo-t being of greater depth than theho-i'izontal slot, said stake also having in its under side alongitudinal groove communicating with the vertical slot, a cavitycommunicating with the groove and a vertical Way extending up from thecavity;' of a ,pin in the horizontal slot, .a wheel on the pin and inthe vertical slot,

a rivet set in the way, mechanism in the cavity to operate the set, aspring to return the set to normal position, a ribbon led around thewheel and connected to operate said mechanism against the force of thespring,

a shaft, arocker above the wheel,a cam on the shaft to operate therocker,'said ribbon being connected'with the rocker; a riveting toolabove the stake to cooperate with the rivet set, and mechanism operatedby the shaft to actuate the riveting tool.

' 20. A riveting stake provided with a' head and the adjusting plugtosupport said head and project the roller above the stake.

21.' In a riveting machine a stake having a yertical Way, and a rivetset in the way, said stake being also provided with two transversegrooves on its upper side communicating with sald way, one of saidgrooves being narrowed from its outer end toward the way to shift therivet stem toalinement with the center of the way as the sheets to beriveted are moved for that purpose.

22. In a riveting machine, the combination with a stake having avertical way therein, of toggle links swung from the stake, a thrustpintle carried by said links, a thrust link carried by the thrustpintle, a riveting head pivo-tedto the thrust link, a lap laying dieprovided with a way, a rivet set mounted on the riveting head andoperating in the lap laying die, a rotary shaft, means to rotate theshaft means to'communicate motion from the shaft to the thrust pintle toswing the toggle links to operate the rivet set, and means operatable bythe rotary shaft to hold a rivet head in opposition to the rivet set.

23. A stake provided with a chamber and a vertical g uideway and withtwo alined transverseholes outer portions of which are threaded, pinsscrewed into the holes and 'provided with, pivot portions that-- extendinto the chamber; a rivet set v rtically movable in said way, and togglejoint mechanism pivoted on the pins and connected to operate said set.

24.. In a rivetingmachine the combination with a stake, of a rivet setvertically movable in the stake, togglejoint mechanism to move the rivetset, a riveting tool for holding the head of a rivet in opposition tothe,

rivet set, resilient means to normally retract the toggle joint and itsrivet set, a pulley, a shaft to transmit motion to operate the rivetingtool, and means operably connecting the s aft and the toggle jointmechanism to operate the rivet set and riveting tool in conjunction witheach other, said connecting means including a flexible connection ledaround the pulley. I

25. In a riveting machine the combination with a stake, of a rivetintool outside the stake, a rivet set in the sta e, a pulley at the rearend of the stake, mechanism to reciprocate the tool, a shaft to operatesuch mechanism, a cam on the shaft, a rocker operatable by the cam,mechanism to operate the rivet set, resilient means to retract the rivetset operating mechanism, and a strap around the pulley and connectingthe rivet set operating mechanism with the rocker 1 arm.

26. In a riveting machine the combination with a stake, of a rivetingtool outside the stake, a rivet set in the stake, a pulley at the rearend of the stake, mechanism to reciprocate the tool,.a shaft to operatesuch mechanism, a cam on the shaft, a rocker operatable by the cam,means to shift the rocker into and out of the path of the cam, mechanismto operate the rivet set, resilient means to retract the rivet setoperating mechanism, and a strap operably connecting the rivet setoperating mechanism with the rocker arm.

27. In a riveting machine the combination with a stake, of a rivetingtool outside the stake, a rivet set in the stake, a pulley at' the rearend of the stake,mechanism to reciprocate the tool, a shaft to operatesuch mechanism, a cam on the shaft, a rocker operatable by the ca'ni,mechanism to operate the rivet set, resilient means to retract the rivetset operating mechanism, a strap and adjustable means unitedlyconnecting the rivet set operating mechanism with the rocker arm.

28. The combination with a stake and cooperating rivet-setting mechanisminside and outside the stake of a shaft to operate the outsiderivet-setting mechanism, a cam on the shaft, a clutch member on theshaft, a rotary driving element having a clutch member for engagementwith the clutch member on the shaft, a rocker shiftable into and out ofposition for engagement with the cam, and means operably connecting therocker arm with the rivet-setting mechanism in the stake.

29. In a riveting machine the combination of a stake, a grooved wheelmounted in the stake and projecting above the top of the stake andhaving its axis parallel with that of the stake, and a ring in thegroove to lift the lap of a pipe to be riveted.- 30. A stake providedwith a vertical screwthreaded bore, a slotted bearing block verticallymovable in the bore, a spring to support the bearing block, and a wheelcarried by the bearing block on an axis that extends parallel with thestake, said spring being arranged to normally hold the wheel in positionto project above the top of the stake.

31. A stake provided with a vertical screwthreaded bore, a slottedbearing block vertically movable in the bore, a spring to sup-' port thebearing block, a wheel carried by the bearing block on an axis thatextends parallel with the stake, said spring being arranged to normallyhold the wheel in position to project above the top of thestake, andmeans to adjust the spring.

32. A stake provided with a vertical screwupper end of the bore, abearing block in the bushingv and on the spring, stops carried by thebearing block to .engage the bushing and a wheel mounted in the bearingblock on an axis that is parallel to the axisof the stake. 34. Thecombination with-a riveting stake of a loose ring around the stake tolift the".

straight seam lap of pipeto be riveted.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 110 23d day of August 1910. L EDWARD J. PENNYPAOKER.

In presence of JAMES R. TOWNSEND, OLIVE DIFFENDERFER.

